re-refined oil quality

[lewk]

this link http://lubesolutions.com/html/eoilsrr.html exposes some pitfalls to production and quality of recycled oils. in the past I used sams brand when it as available in a 10w30 grade.given the risk,and cost of name brand products this is no longer a viable option. any industry types have comments related to this query.

 

[brianl703]

What's wrong with this statement?

"In fact re-refined base oils will never be used to meet the new passenger car motor oil specification GF-3 (API SK) for SAE 5W-30 because of their poor volatility."

 

[Blue99]

That's funny!

Evidently this expert did not realize that API was going to skip the K letter, (about the year 2001), to avoid any confusion with SK-Oils.

Actually, the America's Choice brand of re-refined motor oils are generally conceeded to be of very high quality.

Naturally, America's Choice meets GF-4 & API SM, so this expert is just blowing smoke!

 

[lewk]

despite the author's error,(sk vs.sl/sm),my concern aplplied to the quality of the finished product. it seems the epa has strict guidelines regarding this issue.a voa on re-refined oil would not identify high levels of "pesticides" or "sulfur/phosphorus" or other contaminants/compounds.specifically,this is a caveat emptor situation,ostensibly at least.or is it?see http://www.evergreenoil.com/110_250base.html

[ June 05, 2005, 02:40 PM: Message edited by: lewk ]

 

[brianl703]

Is used engine oil any worse than crude oil in terms of contaminants?

Sour crude oil, for example, has high levels of sulphur.